Answer:
But what makes nicotine so addictive? Consuming nicotine—through regular cigarettes or vaping—leads to the release of the chemical dopamine in the human brain. As with many drugs, dopamine prompts or “teaches” the brain to repeat the same behavior (such as using tobacco) over and over.
Explanation:
A. the use of a drug for nonmedical reasons
Answer:
The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.
Your circulatory system delivers oxygen-rich blood to your bones. Meanwhile, your bones are busy making new blood cells. Working together, these systems maintain internal stability and balance, otherwise known as homeostasis
Explanation:
